Antilocapra americana, Great Basin, Great Basin desert, Hart Mountain, Hart Mountain National Antelope Refuge, Hart Mountain National Wildlife Refuge, NWR, North America, Oregon, Pronghorn, Pronghorn Antelope, Pronghorn Antelopes, Pronghorns, animal, animals, antelope, antelopes, arid, fauna, grassland, grasslands, grazer, grazers, group, herd, hoofed mammals, horizontal, mammal, mammals, nevada, plains, sagebrush, sheldon, sheldon National Wildlife Refuge, ungulate, ungulates, wildlife, photos, photo, photograph, photographs, image, images, picture, pictures, stock, of, agency, leesonphoto